Access our entire API catalog with a single MCP endpoint. Sign in with your API Ninjas account or use your API key — works with Claude, Cursor, ChatGPT, GitHub Copilot, Gemini, and a dozen other clients.
If your client supports OAuth, use the connect URL. Your client opens API Ninjas in the browser, you sign in or create a free account, and you approve the connection. You don't need to copy or paste an API key.
Open Settings → Connectors → Add custom connector, paste the connect URL and select Connect. Then sign in or create a free account, and approve the connection.
claude mcp add --transport http api-ninjas https://mcp.api-ninjas.com/connectThen run /mcp in Claude Code, choose api-ninjas and sign in.
Add a custom connector or MCP server with the connect URL and choose OAuth as the authentication method.
Use https://mcp.api-ninjas.com/mcp with your API key, as shown below.
Authorization: Bearer or ?apikey= in the URLAnthropic's official CLI for Claude. Native support for remote streamable-http servers and per-request headers.
claude mcp add --transport http apininjas https://mcp.api-ninjas.com/mcp \
--header "X-Api-Key: YOUR_API_NINJAS_KEY"{
"mcpServers": {
"apininjas": {
"type": "http",
"url": "https://mcp.api-ninjas.com/mcp",
"headers": { "X-Api-Key": "YOUR_API_NINJAS_KEY" }
}
}
}The endpoint above lists all 244 tools. Every tool definition is loaded into your agent's context when it connects, so if you only need one area, add a suffix to the URL and the server lists just that subset. Same key, same transport, same configuration — only the URL changes. Add more than one if you need several areas.
Stock prices, earnings calendar and transcripts, filings, 13F holdings, rates, crypto, commodities and metals.
Jokes, quotes, trivia, riddles, facts, animals, recipes, cocktails and horoscopes.
Routing numbers, SWIFT/BIC, IBAN, sort codes, VAT, sanctions screening, email, phone and domain checks.
ZIP and postal codes, geocoding, cities, countries, population, weather, air quality and airports.
Car and motorcycle specifications, electric vehicles, VIN decoding, aircraft and motor carriers.
Dictionary, thesaurus, spell check, text similarity, profanity filter, generators and web scraping.
Public and bank holidays, working-day maths, time zones and world time.
Image-to-text, object and face detection, embeddings, logos, QR codes and barcodes.
Nutrition data, calories burned and exercise lookup.
Sales tax by address or ZIP, income tax and property tax.
Your key has used its monthly quota (3,000 calls on the Free plan). Every plan, including Free, can connect to the MCP server; upgrade your plan for a larger quota and premium-only fields.
Your key isn't reaching the server, or it isn't valid. The server accepts it three ways: an X-Api-Key header, an Authorization: Bearer header, or ?apikey=YOUR_KEY appended to the server URL (for clients with no header field). Confirm the value matches the key on your profile page.
A successful connection to the main endpoint lists 244 tools (one per API Ninjas endpoint). A domain-scoped URL lists only that subset, which is expected. Some clients also filter or paginate — check your client's tool browser settings.
Wrap our endpoint with the mcp-remote bridge to convert it into a stdio process: npx -y mcp-remote https://mcp.api-ninjas.com/mcp --header "X-Api-Key:YOUR_API_NINJAS_KEY"
Each tool call counts against your normal API Ninjas quota. Upgrade your plan for higher rate limits, more requests per month, and access to premium-only fields. Still stuck? Contact us.